Soft CP violation and the global matter-antimatter symmetry of the universe

Details Soft CP violation and the global matter-antimatter symmetry of the universe Soft CP violation and the global matter-antimatter symmetry of the universe

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980stin...8031290s&link_type=abstract

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Physics

Antimatter, Cosmology, Field Theory (Physics), Matter (Physics), Asymmetry, Baryons, Conservation Laws, Coupling, Symmetry, Universe, Yukawa Potential

Scientific paper

Scenarios for baryon production are considered within the context of SU(5) and SO(10) grand unified theories where CP violation arises spontaneously. The spontaneous CP symmetry breaking then results in a matter-antimatter domain structure in the universe. Two possible, distinct types of theories of soft CP violation are defined. In the first type the CP nonconservation originates only from the breaking of SU(2)L X U(1) symmetry, and in the second type, even at the unification temperature scale, CP violation can emerge as a result of symmetry breaking by the vacuum expectation values of the superheavy Higgs sector scalars.

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